CN107809306B

CN107809306B - Method and device for UE (user equipment) and base station in wireless transmission

Info

Publication number: CN107809306B
Application number: CN201610815436.5A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2016-09-08
Filing date: 2016-09-08
Publication date: 2020-06-30
Anticipated expiration: 2036-09-08
Also published as: CN107809306A

Abstract

The invention discloses a method and a device for UE (user equipment) and a base station in wireless transmission. As one embodiment, a UE receives first signaling. The first signaling indicates a first time-frequency resource from a target resource pool, wherein the first time-frequency resource comprises a positive integer number of logic resource block pairs. The logical resource block pair comprises one time-frequency resource block in the first time interval and one time-frequency resource block in the second time interval respectively. The target resource pool includes a particular set of the virtual resources. The particular set of virtual resources occupies the same frequency domain resources in the first time interval. Any two of the logical resource block pairs in the particular set of virtual resources occupy orthogonal frequency domain resources in the second time interval. The invention can reduce the blind detection times, reduce the redundancy of control signaling and reduce the transmission delay.

Description

Method and device for UE (user equipment) and base station in wireless transmission

Technical Field

The present invention relates to transmission schemes for wireless signals in wireless communication systems, and more particularly, to methods and apparatus for variable subcarrier spacing.

Background

In an existing 3GPP (3rd Generation Partner Project) LTE (long term Evolution) system, only one subcarrier Spacing (Spacing) is supported within one system bandwidth. The time-frequency resources on one carrier are divided into a plurality of PRB (Physical Resource Block) pairs (Pair). One PRB pair includes 12 subcarriers in the frequency domain, and occupies 1 millisecond in the time domain. The base station transmits DCI (downlink control Information) to schedule PRB pairs in the system bandwidth, and a basic unit of scheduling is a VRB (Virtual Resource Block) pair (pair) or an RBG (Resource Block Group) pair. One PRB pair includes two TDM (Time Division Multiplexing) PRBs, and the two PRBs in one PRB pair occupy the same frequency domain resource. One VRB pair includes PRBs of two TDM. Two PRBs in one VRB pair occupy the same frequency domain resource; or the two PRBs in one VRB pair are orthogonal in the frequency domain (i.e., frequency hopping). An RBG pair consists of P VRB pairs with consecutive indices, where P is related to system bandwidth. Frequency hopping can provide frequency diversity gain.

In 3GPP RAN1#86 conference, the number of subcarriers occupied by PRBs for NR (New Radio access technology) is independent of subcarrier spacing. Further, there may be a plurality of subcarrier spacings in one NR carrier in an FDM (Frequency Division Multiplexing) manner.

For NR carriers that may support one or more subcarrier spacings, how to perform resource allocation is a problem to be solved.

Disclosure of Invention

The size (i.e., size) of the frequency domain resources occupied by one NR PRB is different for different subcarrier spacings. Thus, one intuitive solution is: NR RBGs are defined, one NR RBG comprising a positive integer number of PRBs, the PRBs in one NR RBG being FDM (Frequency Division Multiplexing), the number of PRBs in one NR RBG being related to the subcarrier spacing, the number of PRBs in one NR RBG decreasing with increasing subcarrier spacing. The intuitive scheme can keep the scheduling granularity on the frequency domain unchanged along with the subcarrier spacing. Further, existing frequency hopping schemes can also be compatible with the above-described intuitive schemes.

The inventors have found through research that the above-described intuitive scheme faces the following problems:

the load (i.e. the number of bits) of the control signaling varies with the subcarrier spacing in the NR carrier. For example, when the subcarrier spacing of the Downlink NR carrier is smaller than the subcarrier spacing of the uplink carrier, the number of PRBs in the Downlink NR carrier is greater than the number of PRBs in the uplink NR carrier (even if the number of RBGs is equal), and the Payload Size (Payload Size) of the Downlink Grant (Downlink Grant) DCI may be greater than the Payload Size (for resource allocation type 1) of the uplink Grant DCI, resulting in an increase in the number of blind detections.

A larger subcarrier spacing naturally enables to support shorter transmission delays, whereas in the above-described intuitive scheme the length of time occupied by NRPRB is the same, i.e. the minimum time-domain granularity that can be scheduled in the time domain is independent of the subcarrier spacing. For larger subcarrier spacings, transmission delays may be increased.

The subcarrier spacing cannot be configured by the targeted DCI for downlink grant or uplink grant. Because the payload size of the target DCI is limited to the subcarrier spacing, a UE (User Equipment) cannot demodulate the target DCI without knowing the payload size.

TBS (Transport Block Size) may vary with subcarrier spacing, thereby increasing complexity.

The present invention provides a solution to the above problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the UE of the present application may be applied in a base station and vice versa.

The invention discloses a method in UE supporting variable subcarrier spacing, which comprises the following steps:

-step a. receiving a first signalling;

wherein the first signaling indicates a first time-frequency resource from a target resource pool, the first time-frequency resource comprising a first time interval and a second time interval in a time domain. The first time-frequency resource comprises a positive integer number of logical resource block pairs. The logical resource block pair comprises one time-frequency resource block in the first time interval and one time-frequency resource block in the second time interval respectively. The time frequency resource block consists of Q1 RUs. The RU occupies one subcarrier in the frequency domain and occupies the duration of one multicarrier symbol in the time domain. The target resource pool comprises Q2 virtual resource sets comprising Q3 of the logical resource block pairs. The target resource pool comprises at least one specific virtual resource set. The particular set of virtual resources occupies the same frequency domain resources in at least two of the time-frequency resource blocks in the first time interval. Any two of the logical resource block pairs in the particular virtual resource set occupy orthogonal frequency domain resources in the second time interval; or the first signaling is used to determine whether frequency domain resources occupied by any two of the logical resource block pairs in the specific virtual resource set in the second time interval are orthogonal. The Q1, the Q2, and the Q3 are each positive integers.

In the above method, the two Time Frequency resource blocks are TDM (Time Division Multiplexing), and the pair of logical resource blocks to which the two Time Frequency resource blocks belong is FDM (Frequency Division Multiplexing) in the second Time interval. As an embodiment, the foregoing method can obtain a frequency diversity gain, and can also implement TDM scheduling for (at least part of) the virtual resource set, thereby avoiding an increase in transmission delay.

As an embodiment, the multicarrier symbol is an OFDM (Orthogonal Frequency division multiplexing) symbol.

As one embodiment, the multicarrier symbols are SC-FDMA symbols.

As one embodiment, the multicarrier symbol is a SCMA symbol.

As an embodiment, the target resource pool includes P1 time-frequency resource blocks in the first time interval and the second time interval, respectively, the P1 time-frequency resource blocks do not belong to the logical resource block pair, and the P1 is a positive integer.

As an embodiment, the target resource pool includes P2 time-frequency resource blocks in the first time interval and the second time interval, respectively, the P2 time-frequency resource blocks do not belong to the virtual resource set, and the P2 is a positive integer.

For an embodiment, the target resource pool includes at least one smaller set of time-frequency resources, and the number of the logical resource block pairs included in the smaller set of time-frequency resources is smaller than the Q3. As a sub-embodiment of this embodiment, the logical resource block pair corresponds to a unique virtual index, and the virtual indexes of the logical resource block pairs included in the set with smaller time-frequency resources are consecutive.

As an embodiment, the size of the time domain resource occupied by all the virtual resource sets in the target resource pool is the same; the sizes of the frequency domain resources occupied by all the virtual resource sets in the target resource pool are the same.

The above embodiments can avoid TBS variation with subcarrier spacing, reducing the number of possible TBSs and thus complexity.

As an embodiment, the time domain resources occupied by the Q2 virtual resource sets are the same.

As a sub-embodiment of the above embodiment, the number of RUs occupied by the Q2 virtual resource sets is the same.

In the above embodiment, the payload size of the first signaling does not vary with the size of the subcarrier spacing(s) in the target resource pool, so that the number of blind detection decoding can be reduced.

As an embodiment, two of the time-frequency resource blocks in the logical resource block pair respectively correspond to different subcarrier spacings.

As an embodiment, at least one of the time-frequency resource blocks included in the target resource pool does not belong to the virtual resource set.

As one example, the Q2 is an even number.

As an embodiment, the first time interval and the second time interval are consecutive.

As an embodiment, the length of the first time interval and the length of the second time interval are equal.

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first signaling is Downlink Grant (Downlink Grant) DCI (Downlink control Information).

As an embodiment, the first signaling is an Uplink Grant (Uplink Grant) DCI.

As an embodiment, the granularity (i.e. the minimum time-frequency resource) that the first signaling can be scheduled in the time-frequency domain is one of the logical resource block pairs.

As an embodiment, the granularity with which the first signaling can be scheduled in the time-frequency domain is one of the virtual resource sets.

As an example, the duration of the one multicarrier symbol is 66.7 microseconds.

As an embodiment, the duration of the one multicarrier symbol is the inverse of the corresponding subcarrier spacing, the unit of the duration of the one multicarrier symbol is seconds, and the unit of the corresponding subcarrier spacing is Hz (hertz).

As an embodiment, the length of time occupied by the RUs in the time domain is different for different subcarrier spacings.

As one embodiment, the RUs in the target resource pool are allocated at least two different subcarrier spacings.

As an embodiment, the subcarriers occupied by the time-frequency resource blocks are continuous in the frequency domain, and the RUs occupied by the time-frequency resource blocks on one subcarrier is continuous in the time domain.

As an embodiment, all RUs in the time-frequency resource block correspond to the same subcarrier spacing.

As an embodiment, the set of virtual resources is contiguous in time domain.

As an embodiment, the first signaling indicates that the frequency domain resources occupied by the set of virtual resources are discrete or continuous.

As an embodiment, the first time-frequency resource is composed of a positive integer number of the virtual resource sets.

As an embodiment, for a given set of virtual resources, the first time-frequency resource occupies a part of the time-frequency resource blocks therein.

As an embodiment, an RU in one of the sets of virtual resources corresponds to one of the subcarrier spacings.

As an embodiment, the number of logical resource blocks included in the target resource pool is L1, and the number of time-frequency resource blocks included in the first time interval of the target resource pool is L2. The L1 is less than the L2; or the L1 is equal to the L2.

For one embodiment, the pool of target resources is configurable.

As a sub-embodiment of the above embodiment, the target resource pool is configured by higher layer signaling.

As a sub-embodiment of the above embodiment, the target resource pool is configured by broadcast signaling.

Specifically, according to an aspect of the present invention, the resource block indexes corresponding to the time-frequency resource blocks in the first time interval of the target resource pool are sequentially increased according to a first criterion; and the resource block indexes corresponding to the time frequency resource blocks of the target resource pool in the second time interval are sequentially increased according to a second criterion. And the resource block indexes corresponding to two time-frequency resource blocks in one logic resource block pair have a difference of L/2, wherein L is less than or equal to the number of the time-frequency resource blocks included in the target resource pool. The first criterion is { time domain first, frequency domain second }, and the second criterion is different from the first criterion.

As an embodiment, the resource block indexes of Q3 time-frequency resource blocks of the virtual resource set in the first time interval are consecutive.

As an embodiment, Q3 time-frequency resource blocks of a given said virtual resource set in said first time interval are consecutive in frequency domain and orthogonal pairwise, and Q3 said time-frequency resource blocks of said given said virtual resource set in said second time interval are consecutive in time domain and orthogonal pairwise.

As a sub-embodiment of the above embodiment, the first signaling is used to determine whether Q3 time-frequency resource blocks of the given set of virtual resources in the second time interval are Distributed (Distributed) in the frequency domain.

The above-mentioned embodiments and sub-embodiments can implement that two time-frequency resource blocks of one logic resource block pair are distributed on different frequency domain resources to obtain frequency diversity gain. Furthermore, Q3 time-frequency resource blocks of the given virtual resource set in the second time interval can avoid occupying the same frequency-domain resource, thereby reducing the increase of transmission delay.

As an embodiment, the first signaling is used to determine the L.

As an embodiment, the second criterion is { frequency domain first, time domain second }.

As an embodiment, for the second criterion, the resource block indexes corresponding to the time-frequency resource blocks corresponding to the same real time sequentially increase with the increase of the occupied frequency domain resources, and the resource block index corresponding to the time-frequency resource block with a later starting time is larger than the resource block index corresponding to the time-frequency resource block with an earlier starting time.

As an embodiment, for the first criterion, the resource block index corresponding to the time-frequency resource block occupying a higher frequency-domain resource is larger than the resource block index corresponding to the time-frequency resource block occupying a lower frequency-domain resource.

As an embodiment, for the first criterion, the resource block index corresponding to the time-frequency resource block occupying a later time-domain resource on a given frequency-domain resource is larger than the resource block index corresponding to the time-frequency resource block occupying an earlier time-domain resource.

As an embodiment, the resource block indexes corresponding to the time-frequency resource blocks in the first time interval of one of the virtual resource sets are consecutive; or the first signaling is used to determine whether the resource block index corresponding to the time-frequency resource block in the first time interval of one of the virtual resource sets is continuous.

Specifically, according to one aspect of the present invention, the method further comprises the following steps:

-step b. receiving a first wireless signal in a first time-frequency resource; or transmitting the first wireless signal in the first time-frequency resource.

The first signaling includes scheduling information of the first wireless signal, where the scheduling information includes at least one of { MCS (Modulation and Coding Status), NDI (New Data Indicator), RV (Redundancy Version), HARQ (Hybrid Automatic Repeat reQuest) Process Number (Process Number) }.

As an embodiment, the first signaling is DL Grant DCI, and the UE receives the first wireless signal in the first time-frequency resource in the step B.

As an embodiment, the first signaling is UL Grant DCI, and the UE transmits the first wireless signal in the first time-frequency resource in the step B.

As an embodiment, the first wireless signal adopts an OFDM modulation scheme.

As an embodiment, the first wireless signal adopts a modulation scheme of SC-FDMA (Single-carrier Frequency-Division Multiple Access).

As an embodiment, the first wireless signal adopts a modulation scheme of FBMC (Filter Bank Multiple Carrier, Filter Bank multicarrier technology).

As an embodiment, the first wireless Signal includes at least one of { Uplink information, UCI (Uplink control information), RS (Reference Signal) }.

As a sub-embodiment of the above embodiment, the uplink information is transmitted on a PUSCH (Physical uplink shared Channel).

As a sub-embodiment of the foregoing embodiment, the transmission Channel corresponding to the UpLink information is an UL-SCH (UpLink Shared Channel).

As an embodiment, the first signaling is physical layer signaling.

As an embodiment, the first time-frequency resource includes K3 sub-resources, the K3 sub-resources correspond to K3 sub-carrier spacings, any two sub-carrier spacings among the K3 sub-carrier spacings are not equal, and K3 is a positive integer greater than 1.

As one embodiment, the first wireless signal includes data and a DMRS (Demodulation reference signal).

As one embodiment, a first block of bits is used to generate the first wireless signal. As a sub-embodiment of the above embodiment, the first bit Block is a Transport Block (TB). As another sub-embodiment of the foregoing embodiment, the first radio signal is an output of the first bit block after sequentially performing channel coding (channelization), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource Element Mapper (Resource Element Mapper), and OFDM signal Generation (Generation). As another sub-embodiment of the foregoing embodiment, the part of the first radio signal excluding the DMRS is an output of the first bit block after sequentially performing Channel Coding (Channel Coding), Modulation Mapper (Modulation Mapper), Layer Mapper (Layer Mapper), Precoding (Precoding), Resource element Mapper (Resource element Mapper), and OFDM signal Generation (Generation).

Specifically, according to an aspect of the present invention, the target resource pool includes K1 target resource sub-pools, and the time-frequency resources corresponding to the K1 target resource sub-pools are in one-to-one correspondence with K1 subcarrier spacings. The target sub-pool of resources comprises a positive integer number of the pairs of logical resource blocks. The K1 subcarrier spacings all belong to a first set of subcarrier spacings consisting of a K2 subcarrier spacing. The K1 is 1 and the K2 is a positive integer greater than the K1; or the K1 is greater than 1 and the K2 is not less than the K1. The K2 subcarrier spacings share the same { the Q1, the Q3 }. At least two subcarrier spacings exist in the K2 subcarrier spacing, and the number of subcarriers occupied by the time-frequency resource block is different for the two subcarrier spacings. Any two subcarrier spacings in the K2 subcarrier spacings are unequal.

As an embodiment, for the K2 subcarrier spacing, the sizes of the time domain resources occupied by the virtual resource sets are the same; for the K2 subcarrier spacing, the sizes of the frequency domain resources occupied by the virtual resource sets are the same.

In the above embodiment, the load size of the first signaling is independent of the size/type of the configured subcarrier spacing of the target resource pool, so that the number of blind detections is reduced. Further, the above embodiment allows the first signaling to perform resource allocation on the target resource pool corresponding to a plurality of different subcarrier spacings, thereby reducing redundancy of the control signaling.

As an embodiment, the frequency domain resources occupied by the target resource sub-pool are contiguous.

As an embodiment, an RU in one of the time-frequency resource blocks corresponds to one subcarrier spacing.

As an embodiment, for any two subcarrier spacings among the K2 subcarrier spacings, the number of subcarriers occupied by the time-frequency resource block is different.

As an embodiment, the K1 is greater than 1, and any two of the K1 target resource sub-pools are discontinuous in the frequency domain.

As an embodiment, the time domain resource occupied by the target resource pool does not exceed one millisecond.

As an embodiment, the K1 is greater than 1, and the time domain resources occupied by the K1 target resource sub-pools are the same.

As an embodiment, the one-to-one correspondence between the time-frequency resources corresponding to the K1 target resource sub-pools and the K1 subcarrier spacings refers to: the subcarriers on the K1 target resource sub-pools are respectively configured as the K1 subcarrier spacings.

As an embodiment, the second criterion is { frequency domain first, time domain second, the target sub-pool of resources third }.

Specifically, according to an aspect of the present invention, the step a further includes the steps of:

step A0. receives the second signaling.

Wherein the second signaling is used to determine at least one of { the target resource pool, the K1 target resource sub-pools, the K1 subcarrier spacings, the Q1, the Q3 }.

As an embodiment, the second signaling indicates the K1 target resource sub-pools consisting of the K1 target resource sub-pools and the K1 subcarrier spacings.

As an embodiment, the second signaling implicitly indicates at least one of { the Q1, the Q3 }.

As an embodiment, the second signaling indicates the K1 target resource sub-pools and the K1 subcarrier spacing, the Q3 being implicitly determined by the K1 subcarrier spacing.

As one embodiment, at least one of the K1 target resource sub-pools, the K1 subcarrier spacings, is used to determine the Q1.

As an embodiment, the second signaling comprises one or more higher layer signaling.

As an embodiment, the second signaling is physical layer signaling.

As an embodiment, the second signaling is cell-common.

As an embodiment, the second signaling is UE specific.

As an embodiment, the first signaling and the second signaling belong to a DCI (Downlink control information).

As one embodiment, the second signaling is used to determine the first set of subcarrier spacings.

-a step a1. determining the first set of subcarrier spacings.

Wherein the K1 subcarrier spacings are used to determine the first set of subcarrier spacings; or the second signaling is used to determine the first set of subcarrier spacings.

For one embodiment, the first set of subcarrier spacings consists of the K1 subcarrier spacings.

Specifically, according to an aspect of the present invention, the target resource pool includes Q4 pairs of the logical resource blocks, the Q4 is equal to the product of the Q3 and the Q2, and the virtual indexes of the Q4 pairs of the logical resource blocks are respectively from 0 to Q4 minus 1. The respective virtual indices of the logical resource block pairs in one of the virtual resource sets are consecutive.

As an embodiment, for a given one of said time-frequency resource blocks, the mapping of the respective virtual index to the respective resource block index is configurable.

As an embodiment, for a given one of said time-frequency resource blocks, the respective said virtual index is equal to the respective said resource block index.

As an embodiment, the first signaling includes Q2 information bits, the Q2 information bits respectively indicating whether the Q2 sets of virtual resources belong to the first time-frequency resource.

The invention discloses a method in a base station for supporting variable subcarrier spacing, which comprises the following steps:

-step a. sending a first signaling;

As an example, the Q1, the Q2 and the Q3 are each greater than 1,

as an embodiment, the Q2 is greater than 1, and the time domain resources occupied by the Q2 virtual resource sets are the same.

-step b. transmitting a first wireless signal in a first time-frequency resource; or receiving a first wireless signal in a first time-frequency resource.

Wherein the first signaling comprises scheduling information of the first wireless signal, the scheduling information comprising at least one of { MCS, NDI, RV, HARQ process number }.

As an embodiment, the first signaling is DL Grant DCI, and the base station transmits the first wireless signal in the first time-frequency resource in step B.

As an embodiment, the first signaling is UL Grant DCI, and the base station receives the first wireless signal in the first time-frequency resource in step B.

step A0. sends the second signaling.

-a step a1. determining the first set of subcarrier spacings.

The invention discloses user equipment supporting variable subcarrier spacing, which comprises the following modules:

a first receiving module: for receiving a first signaling;

As an embodiment, the user equipment is characterized by further comprising the following modules:

a first processing module: receiving a first wireless signal in a first time-frequency resource; or transmitting the first wireless signal in the first time-frequency resource.

As an embodiment, the user equipment is characterized in that resource block indexes corresponding to the time-frequency resource blocks in the first time interval of the target resource pool are sequentially increased according to a first criterion; and the resource block indexes corresponding to the time frequency resource blocks of the target resource pool in the second time interval are sequentially increased according to a second criterion. And the resource block indexes corresponding to two time-frequency resource blocks in one logic resource block pair have a difference of L/2, wherein L is less than or equal to the number of the time-frequency resource blocks included in the target resource pool. The first criterion is { time domain first, frequency domain second }, and the second criterion is different from the first criterion.

As an embodiment, the above user equipment is characterized in that the first receiving module is further configured to receive a second signaling. Wherein the second signaling is used to determine at least one of { the target resource pool, the K1 target resource sub-pools, the K1 subcarrier spacings, the Q1, the Q3 }.

As an embodiment, the above user equipment is characterized in that the first receiving module is further configured to determine the first subcarrier spacing set. Wherein the K1 subcarrier spacings are used to determine the first set of subcarrier spacings; or the second signaling is used to determine the first set of subcarrier spacings.

As an embodiment, the ue is characterized in that the target resource pool includes K1 target resource sub-pools, and the time-frequency resources corresponding to the K1 target resource sub-pools are in one-to-one correspondence with K1 subcarrier spacings. The target sub-pool of resources comprises a positive integer number of the pairs of logical resource blocks. The K1 subcarrier spacings all belong to a first set of subcarrier spacings consisting of a K2 subcarrier spacing. The K1 is 1 and the K2 is a positive integer greater than the K1; or the K1 is greater than 1 and the K2 is not less than the K1. The K2 subcarrier spacings share the same { the Q1, the Q3 }. At least two subcarrier spacings exist in the K2 subcarrier spacing, and the number of subcarriers occupied by the time-frequency resource block is different for the two subcarrier spacings. Any two subcarrier spacings in the K2 subcarrier spacings are unequal.

As an embodiment, the above user equipment is characterized in that the target resource pool includes Q4 pairs of the logical resource blocks, the Q4 is equal to the product of the Q3 and the Q2, and the respective virtual indexes of the Q4 pairs of the logical resource blocks are respectively from 0 to Q4 minus 1. The respective virtual indices of the logical resource block pairs in one of the virtual resource sets are consecutive.

The invention discloses a base station device supporting variable subcarrier spacing, which comprises the following modules:

a first sending module: for transmitting a first signaling;

As an embodiment, the base station device is characterized by further comprising the following modules:

a second processing module: for transmitting a first wireless signal in a first time-frequency resource; or receiving a first wireless signal in a first time-frequency resource.

As an embodiment, the base station device is characterized in that the first sending module is further configured to at least one of:

sending a second signaling;

determining the first set of subcarrier spacings.

Wherein the second signaling is used to determine at least one of { the target resource pool, the K1 target resource sub-pools, the K1 subcarrier spacings, the Q1, the Q3 }. Wherein the K1 subcarrier spacings are used to determine the first set of subcarrier spacings; or the second signaling is used to determine the first set of subcarrier spacings.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 shows a flow diagram where a first wireless signal is a downlink signal according to one embodiment of the invention;

fig. 2 shows a flow diagram where the first wireless signal is an uplink signal according to one embodiment of the invention;

FIG. 3 illustrates a schematic diagram of a target resource pool, according to one embodiment of the invention;

FIG. 4 shows a schematic diagram of a target sub-pool of resources, according to one embodiment of the invention;

FIG. 5 is a diagram illustrating time-frequency resource blocks corresponding to different subcarrier spacings, according to an embodiment of the invention;

FIG. 6 shows a schematic diagram of a portion of a set of virtual resources in a first time interval, according to an embodiment of the invention;

FIG. 7 shows a schematic diagram of a portion of a set of virtual resources in a first time interval, according to yet another embodiment of the invention;

FIG. 8 shows a schematic diagram of a logical resource block pair according to one embodiment of the present invention;

FIG. 9 shows a schematic diagram of portions of two sets of virtual resources in a target time interval, according to one embodiment of the invention;

fig. 10 shows a schematic diagram of two logical resource blocks in one virtual resource set corresponding to the same subcarrier spacing, according to an embodiment of the invention;

FIG. 11 shows a schematic diagram of two logical resource blocks in a virtual resource set corresponding to different subcarrier spacings, according to an embodiment of the invention;

fig. 12 shows a schematic diagram of resource block indices of a target resource pool in a first time interval according to an embodiment of the invention;

fig. 13 shows a schematic diagram of resource block indices of a target resource pool in a second time interval according to an embodiment of the invention;

fig. 14 shows a schematic diagram of resource block indexing of a target resource pool in a second time interval according to yet another embodiment of the invention;

FIG. 15 shows a schematic diagram of a mapping of resource block indices to virtual indices according to one embodiment of the invention;

FIG. 16 shows a schematic diagram of a mapping of resource block indices to virtual indices according to yet another embodiment of the invention;

fig. 17 shows a block diagram of a processing device in a UE according to an embodiment of the invention;

fig. 18 shows a block diagram of a processing means in a base station according to an embodiment of the invention;

Detailed Description

The technical solutions of the present invention will be further described in detail with reference to the accompanying drawings, and it should be noted that the features of the embodiments and examples of the present application may be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a flowchart in which the first wireless signal is a downlink signal, as shown in fig. 1. In fig. 1, base station N1 is a serving cell maintaining base station for UE U2.

For theBase station N1Transmitting a second signaling in step S10; determining a first subcarrier spacing set in step S11; transmitting a first signaling in step S12; the first wireless signal is transmitted in step S13.

For theUE U2Receiving a second signaling in step S20; determining a first subcarrier spacing set in step S21; receiving a first signaling in step S22; the first wireless signal is received in step S23.

In embodiment 1, the first signaling indicates a first time-frequency resource from a target resource pool, where the first time-frequency resource includes a first time interval and a second time interval in a time domain. The first time-frequency resource comprises a positive integer number of logical resource block pairs. The logical resource block pair comprises one time-frequency resource block in the first time interval and one time-frequency resource block in the second time interval respectively. The time frequency resource block consists of Q1 RUs. The RU occupies one subcarrier in the frequency domain and occupies the duration of one multicarrier symbol in the time domain. The target resource pool comprises Q2 virtual resource sets comprising Q3 of the logical resource block pairs. The target resource pool comprises at least one specific virtual resource set. The particular set of virtual resources occupies the same frequency domain resources in at least two of the time-frequency resource blocks in the first time interval. Any two of the logical resource block pairs in the particular virtual resource set occupy orthogonal frequency domain resources in the second time interval; or the first signaling is used to determine whether frequency domain resources occupied by any two of the logical resource block pairs in the specific virtual resource set in the second time interval are orthogonal. The Q1, the Q2, and the Q3 are each positive integers. The K1 subcarrier spacings are used to determine the first set of subcarrier spacings; or the second signaling is used to determine the first set of subcarrier spacings. The first signaling includes scheduling information for the first wireless signal, the scheduling information including at least one of { MCS, NDI, RV, HARQ process number }. The second signaling is used to determine at least one of { the target resource pool, the K1 target resource sub-pools, the K1 subcarrier spacings, the Q1, the Q3 }.

As sub-embodiment 1 of embodiment 1, the first set of subcarrier spacings is a subset of a second set of subcarrier spacings equal to {3.75kHz, 7.5kHz, 15kHz, 30kHz, 60kHz, 120kHz, 240kHz, 480kHz }.

As sub-embodiment 2 of embodiment 1, the second signaling indicates the first subcarrier spacing set, and the second signaling includes multiple RRC (Radio Resource Control) IEs (Information elements).

As sub-embodiment 3 of embodiment 1, the first signaling is DL grant DCI, and the transmission Channel corresponding to the first radio signal is a DL-SCH (DownLink Shared Channel).

As sub-embodiment 4 of embodiment 1, the first time interval and the second time interval are consecutive.

As a sub-embodiment 5 of embodiment 1, the first time interval and the second time interval are equal in duration.

As sub-embodiment 6 of embodiment 1, the target resource pool includes Q4 pairs of the logical resource blocks, the Q4 is equal to the product of the Q3 and the Q2, and corresponding virtual indexes of the Q4 pairs of the logical resource blocks are respectively from 0 to Q4 minus 1. The respective virtual indices of the logical resource block pairs in one of the virtual resource sets are consecutive.

Example 2

Embodiment 2 illustrates a flowchart in which the first wireless signal is an uplink signal, as shown in fig. 2. In fig. 2, base station N3 is the serving cell maintaining base station for UE U4.

For theBase station N3First signaling is transmitted in step S31, and a first wireless signal is received in step S32.

For theUE U4The first signaling is received in step S41, and the first wireless signal is transmitted in step S42.

As sub-embodiment 1 of embodiment 2, the first signaling is UL grant DCI, and the UpLink transmission Channel corresponding to the first wireless signal is UL-SCH (UpLink Shared Channel).

As sub-embodiment 2 of embodiment 2, the modulation scheme of the first radio signal is SC-FDMA.

As a sub-embodiment 3 of embodiment 2, the first radio signal corresponds to a TTI (Transport time interval) equal to a sum of time lengths of the first time interval and the second time interval.

Example 3

Example 3 illustrates a schematic diagram of a target resource pool, as shown in fig. 3. In embodiment 3, a bold frame identifies a target resource pool, an oblique line identifies a target resource sub-pool #0, a reverse oblique line identifies a target resource sub-pool #1, a vertical line identifies a target resource sub-pool # (K1-1), and a dot-filled square identification Guard Band (Guard Band).

In embodiment 3, the target resource pool includes K1 target resource sub-pools, which are respectively target resource sub-pools # {0, 1, …, K1-1 }. A guard band exists between two adjacent target resource sub-pools. And the target resource sub-pool occupies sub-carriers in a frequency domain. The allocated subcarrier spacing of any two of the K1 target resource sub-pools is different.

As sub-embodiment 1 of embodiment 3, the frequency domain width of the guard band is configurable.

As sub-embodiment 2 of embodiment 3, the frequency domain width of the guard band is predefined.

As sub-embodiment 3 of embodiment 3, one said target sub-pool of resources is allocated only one said sub-carrier spacing.

Example 4

Example 4 illustrates a schematic diagram of a target resource sub-pool, as shown in fig. 4. In fig. 4, slashes identify the target resource sub-pool, and dots filled squares identify guard bands.

In embodiment 4, the subcarriers occupied by the target resource sub-pool are distributed (i.e. discontinuous) in the frequency domain.

As sub-embodiment 1 of embodiment 4, the target sub-pool of resources is allocated only one of the subcarrier spacings.

Example 5

Embodiment 5 illustrates a schematic diagram of time-frequency resource blocks corresponding to different subcarrier spacings, as shown in fig. 5. In fig. 5, a bold solid frame identifies a first time-frequency resource block, a dashed solid frame identifies a second time-frequency resource block, cross-line filled squares identify RUs in the first time-frequency resource block, and dot filled squares identify RUs in the second time-frequency resource block.

In embodiment 5, the first time-frequency resource block and the second time-frequency resource block respectively include F1 subcarriers, and F1 is a positive integer. The number of RUs in the first time-frequency resource block is equal to the number of RUs in the second time-frequency resource block, the subcarrier spacing corresponding to the first time-frequency resource block is F3 kilohertz (kHz), and the subcarrier spacing corresponding to the second time-frequency resource block is F2 kilohertz (kHz). The duration of the RUs in the first time-frequency resource block is T3 milliseconds (ms), and the duration of the RUs in the second time-frequency resource block is T2 milliseconds (ms). The F3 is greater than the F2, and the product of the F3 and the T3 is equal to the product of the F2 and the T2.

As sub-embodiment 1 of embodiment 5, said F1 is one of {12, 14, 16 }.

As a sub-embodiment 2 of the embodiment 5, the time domain resource occupied by the first time frequency resource block belongs to the time domain resource occupied by the second time frequency resource block.

Example 6

Example 6 illustrates a schematic diagram of a portion of a set of virtual resources in a first time interval, as shown in fig. 6. In fig. 6, a bold frame identifies a virtual resource set, a slash identifies time-frequency resource block # k, a slash identifies time-frequency resource block # (k +1), and a cross line identifies time-frequency resource block # (k + Q3-1).

In embodiment 6, a virtual resource set is composed of Q3 time-frequency resource blocks in TDM manner in the first time interval. The resource block indexes corresponding to the Q3 time-frequency resource blocks are continuous, namely k, (k +1), …, (k + Q3-1), and k is an integer.

As sub-embodiment 1 of embodiment 6, the resource block index of a given time-frequency resource block is equal to a virtual index corresponding to the given time-frequency resource block.

Example 7

Example 7 illustrates a schematic diagram of a portion of yet another set of virtual resources in a first time interval, as shown in fig. 7. In fig. 7, a bold outline identifies a set of virtual resources.

And the resource block indexes corresponding to the time-frequency resource blocks in the virtual resource set are sequentially increased according to a first criterion, wherein the first criterion is { time domain first, frequency domain second }. I.e., the resource block indexes are shown as { k, k +1, …, k + V-1, …, k + Q3-V, k + Q3-V +1, …, k + Q3-1} in fig. 6 in sequence.

Example 8

Embodiment 8 illustrates a schematic diagram of a logical resource block pair, as shown in fig. 8. In fig. 8, the oblique line, the reverse oblique line, the vertical line, and the horizontal line respectively identify the third time-frequency resource block, the fourth time-frequency resource block, the fifth time-frequency resource block, and the sixth time-frequency resource block.

In embodiment 8, the third time-frequency resource block and the fourth time-frequency resource block are in the first time interval, and the fifth time-frequency resource block and the sixth time-frequency resource block are in the second time interval. The frequency domain resources occupied by the third time frequency resource block and the fifth time frequency resource block are the same and correspond to the same subcarrier spacing, and the frequency domain resources occupied by the fourth time frequency resource block and the sixth time frequency resource block are the same and correspond to the same subcarrier spacing.

As sub-embodiment 1 of embodiment 8, the third time-frequency resource block and the sixth time-frequency resource block form a logic resource block pair.

As sub-embodiment 2 of embodiment 8, the fifth time-frequency resource block and the sixth time-frequency resource block form a logic resource block pair.

As sub-embodiment 3 of embodiment 8, the fourth time-frequency resource block and the fifth time-frequency resource block form a logic resource block pair.

As sub-embodiment 4 of embodiment 8, the third time-frequency resource block and the fifth time-frequency resource block form a logic resource block pair.

As sub-embodiment 5 of embodiment 8, the fourth time-frequency resource block and the sixth time-frequency resource block form a logic resource block pair.

Example 9

Example 9 illustrates a schematic diagram of portions of two virtual resource sets in a target time interval, as shown in fig. 9. In fig. 9, the bold solid boxes identify portions of the first set of virtual resources in the target time interval and the thin solid boxes identify portions of the second set of virtual resources in the target time interval.

In embodiment 9, the time-frequency resource blocks in the first virtual resource set are FDM, and the time-frequency resource blocks in the second virtual resource set are TDM. A guard band exists between the first set of virtual resources and the second set of virtual resources. The subcarrier spacing corresponding to the first virtual resource set is smaller than the subcarrier spacing corresponding to the second virtual resource set.

As sub-embodiment 1 of embodiment 9, the target time interval is a first time interval.

As sub-embodiment 1 of embodiment 9, the target time interval is a second time interval.

Example 10

Embodiment 10 illustrates a schematic diagram of two logical resource blocks corresponding to the same subcarrier spacing in one virtual resource set, as shown in fig. 10. In fig. 10, a diagonal line indicates a logical resource block # Z, and a reverse diagonal line indicates a logical resource block # (Z +1), where Z and Z +1 are virtual indexes of corresponding logical resource blocks, respectively, and Z is an integer.

In embodiment 10, the logical resource block # Z and the logical resource block # (Z +1) correspond to the same subcarrier spacing and occupy the same time domain resource, and the logical resource block # Z and the logical resource block # (Z +1) are discontinuous in the frequency domain. And the virtual resource set comprises a positive integer of the logic resource blocks with continuous virtual indexes in the time domain resources occupied by the logic resource block # Z.

Example 11

Embodiment 11 illustrates a schematic diagram of two logical resource blocks corresponding to different subcarrier spacings in one virtual resource set, as shown in fig. 11. In fig. 11, the slash identifies the seventh time-frequency resource block, the slash identifies the eighth time-frequency resource block, and the dot-filled grid identifies the guard band.

In embodiment 11, a subcarrier spacing corresponding to the seventh time frequency resource block is greater than a subcarrier spacing corresponding to the eighth time frequency resource block. The seventh time frequency resource block and the eighth time frequency resource block belong to a virtual resource set.

Example 12

Embodiment 12 illustrates a schematic diagram of resource block index of a target resource pool in a first time interval, as shown in fig. 12. In fig. 12, a small grid filled with letters/numbers (from 0 to k) identifies a time-frequency resource block₀+k₁+k₂-1) is the corresponding resource block index.

In embodiment 12, the target resource pool includes target resource sub-pools { #0, #1, #2}, and the number of time-frequency resource blocks of the target resource sub-pools { #0, #1, #2} in the first time interval is k respectively₀，k₁，k₂. And the resource block indexes corresponding to the time-frequency resource blocks of the target resource pool in a first time interval are sequentially increased according to a first criterion, wherein the first criterion is { time domain first, frequency domain second }.

Example 13

Embodiment 13 illustrates a schematic diagram of resource block index of a target resource pool in a second time interval, as shown in fig. 13. In fig. 13, a small grid filled with letters/numbers (from 0 to k) identifies a time-frequency resource block₀+k₁+k₂-1) is the corresponding resource block index.

In embodiment 13, the target resource pool includes target resource sub-pools { #0, #1, #2}, and the numbers of time-frequency resource blocks of the target resource sub-pools { #0, #1, #2} in the second time interval are k respectively₀，k₁，k₂. And the resource block indexes corresponding to the time-frequency resource blocks of the target resource pool in a second time interval are sequentially increased according to a second criterion, wherein the first criterion is { frequency domain first, time domain second }.

As sub-embodiment 1 of embodiment 13, the target resource pool includes k₀+k₁+k₂-1 logical resource block pair. Two time-frequency resource blocks in the logical resource block pair are respectively located in the first time interval in fig. 12 and the second time interval in fig. 13, where a resource block index corresponding to the time-frequency resource block in the first time interval is x, and a resource block index corresponding to the time-frequency resource block in the second time interval is mod (x + L/2, L). L is equal to k₀+k₁+k₂-1, mod (A, B) denotes the remainder of A divided by B, x being from 0 to k₀+k₁+k₂-an integer of 1.

Example 14

Embodiment 14 illustrates a schematic diagram of resource block indexes of a further target resource pool in a second time interval, as shown in fig. 14. In fig. 14, a small grid filled with letters/numbers (from 0 to k) identifies a time-frequency resource block₀+k₁+k₂-1) is the corresponding resource block index.

In embodiment 14, the target resource pool includes target resource sub-pools { #0, #1, #2}, and the numbers of time-frequency resource blocks of the target resource sub-pools { #0, #1, #2} in the second time interval are k respectively₀，k₁，k₂. And the resource block indexes corresponding to the time-frequency resource blocks in the second time interval of the target resource pool are sequentially increased according to a second criterion, wherein the first criterion is { frequency domain first, time domain second and target resource sub-pool third }.

As a sub-example of example 14Example 1, the target resource pool includes k₀+k₁+k₂-1 logical resource block pair. Two time-frequency resource blocks in the logical resource block pair are respectively located in the first time interval in fig. 12 and the second time interval in fig. 14, where a resource block index corresponding to the time-frequency resource block in the first time interval is x, and a resource block index corresponding to the time-frequency resource block in the second time interval is mod (x + L/2, L). L is equal to k₀+k₁+k₂-1, mod (A, B) denotes the remainder of A divided by B, x being from 0 to k₀+k₁+k₂-an integer of 1.

Example 15

Embodiment 15 illustrates a schematic diagram of mapping resource block indexes to virtual indexes, as shown in fig. 15. In fig. 15, a small box filled with letters/numbers (from 0 to Y1) identifying a time-frequency/logical resource block is the corresponding resource block index or virtual index.

In embodiment 15, for a given time-frequency resource block, the corresponding resource block index is equal to the virtual index when the given time-frequency resource block is used for a logical resource block.

Example 16

Embodiment 16 illustrates a schematic diagram of mapping resource block indexes to virtual indexes, as shown in fig. 16. In fig. 16, a small box filled with letters/numbers, which are the corresponding resource block indices (from 0 to Y1) or virtual indices (from X _0 to X _ Y1), identifies a time-frequency resource block/logical resource block.

In embodiment 16, for a given time-frequency resource block, the corresponding resource block index is not equal to the virtual index when the given time-frequency resource block is used for a logical resource block.

As sub-embodiment 1 of embodiment 16, the virtual index is greater than or equal to 0 and less than or equal to Y1, the virtual index being unique.

Example 17

Embodiment 17 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 17. In fig. 17, the processing apparatus 100 is mainly composed of a first receiving module 101 and a first processing module 102.

The first receiving module 101 is configured to receive a first signaling, and the first processing module 102 is configured to receive a first wireless signal in a first time-frequency resource; or transmitting the first wireless signal in the first time-frequency resource.

In embodiment 17, the first signaling is physical layer signaling, and the first signaling indicates a first time-frequency resource from a target resource pool, where the first time-frequency resource includes a first time interval and a second time interval in a time domain. The first time-frequency resource comprises a positive integer number of logical resource block pairs. The logical resource block pair comprises one time-frequency resource block in the first time interval and one time-frequency resource block in the second time interval respectively. The time frequency resource block consists of Q1 RUs. The RU occupies one subcarrier in the frequency domain and occupies the duration of one multicarrier symbol in the time domain. The target resource pool comprises Q2 virtual resource sets comprising Q3 of the logical resource block pairs. The target resource pool comprises at least one specific virtual resource set. The particular set of virtual resources occupies the same frequency domain resources in at least two of the time-frequency resource blocks in the first time interval. The frequency domain resources occupied by any two of the logical resource block pairs in the particular set of virtual resources in the second time interval are orthogonal (i.e. do not overlap); or the first signaling is used to determine whether frequency domain resources occupied by any two of the logical resource block pairs in the specific virtual resource set in the second time interval are orthogonal. The Q1, the Q2, and the Q3 are each positive integers greater than 1. The first signaling includes scheduling information for the first wireless signal, the scheduling information including at least one of { MCS, NDI, RV, HARQ process number }.

As sub-embodiment 1 of embodiment 17, the first receiving module 101 is further configured to receive a second signaling. Wherein the second signaling comprises one or more RRC IEs, the second signaling used to determine { the target resource pool, the K1 target resource sub-pools, the K1 subcarrier spacings, the Q1, the Q3 }.

As sub-embodiment 2 of embodiment 17, the first signaling is DCI.

As sub-embodiment 3 of embodiment 17, the first signaling includes Q2 information bits, the Q2 information bits indicating whether the Q2 sets of virtual resources belong to the first time-frequency resources, respectively.

As sub-embodiment 4 of embodiment 17, the first signaling includes Q2 information bits, and the Q2 virtual resource sets are sequentially ordered as virtual resource set #0 to virtual resource set # (Q2-1). The Q2 virtual resource sets are divided into P virtual resource set groups, which are sequentially ordered as virtual resource set group #0 to virtual resource set group # (P-1). The virtual resource set corresponding to the virtual resource set group # i is { virtual resource set # i, virtual resource set # (i + P), …, virtual resource set # (R-1) }.

As an additional example of sub-embodiment 4 of embodiment 17, the Q2 information bits comprise

One bit is used to determine whether a pair of logical resource blocks included in the P virtual resource set groups belongs to the first time-frequency resource. Wherein, the

The bit of "1" in the bits represents that the corresponding virtual resource set group contains the logic resource block pair belonging to the first time-frequency resource; the above-mentioned

A bit of "0" in the bits indicates that the corresponding virtual resource set group does not include the logical resource block pair belonging to the first time-frequency resource.

Represents a minimum positive integer not less than X, which is a real number greater than 0.

One bit is used to determine a logical resource block pair belonging to the first time-frequency resource in a given set of virtual resources, the given set of virtual resources being the set

The virtual resource set group corresponding to the bit of "1" in the bits.

As an adjunct embodiment to sub-embodiment 4 of embodiment 17, said P is equal to said Q3.

Example 18

Embodiment 18 is a block diagram illustrating a processing apparatus in a base station, as shown in fig. 18. In fig. 18, the processing apparatus 200 is mainly composed of a first sending module 201 and a second processing module 202.

The first sending module 201 is configured to send a first signaling; the second processing module 202 is configured to transmit a first wireless signal in a first time-frequency resource; or receiving a first wireless signal in a first time-frequency resource.

In embodiment 18, the first signaling indicates a first time-frequency resource from a target resource pool, the first time-frequency resource comprising a first time interval and a second time interval in a time domain. The first time-frequency resource comprises a positive integer number of logical resource block pairs. The logical resource block pair comprises one time-frequency resource block in the first time interval and one time-frequency resource block in the second time interval respectively. The time frequency resource block consists of Q1 RUs. The RU occupies one subcarrier in the frequency domain and occupies the duration of one multicarrier symbol in the time domain. The target resource pool comprises Q2 virtual resource sets comprising Q3 of the logical resource block pairs. The target resource pool comprises at least one specific virtual resource set. The particular set of virtual resources occupies the same frequency domain resources in at least two of the time-frequency resource blocks in the first time interval. The first signaling indicates whether frequency domain resources occupied by any two logic resource block pairs in the specific virtual resource set in the second time interval are orthogonal. The Q1, the Q2, and the Q3 are each positive integers. The first signaling includes scheduling information for the first wireless signal, the scheduling information including at least one of { MCS, NDI, RV, HARQ process number }.

As sub-embodiment 1 of embodiment 18, resource block indexes corresponding to the time-frequency resource blocks in the first time interval of the target resource pool are sequentially increased according to a first criterion; and the resource block indexes corresponding to the time frequency resource blocks of the target resource pool in the second time interval are sequentially increased according to a second criterion. And the resource block indexes corresponding to two time-frequency resource blocks in one logic resource block pair have a difference of L/2, wherein L is less than or equal to the number of the time-frequency resource blocks included in the target resource pool. The first criterion is { time domain first, frequency domain second }, and the second criterion is { frequency domain first, time domain second }.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in the present invention include, but are not limited to, a mobile phone, a tablet computer, a notebook computer, a vehicle-mounted Communication device, a wireless sensor, a network card, an internet of things terminal, an RFID terminal, an NB-IOT terminal, an MTC (Machine Type Communication) terminal, an eMTC (enhanced MTC) terminal, a data card, a network card, a vehicle-mounted Communication device, a low-cost mobile phone, a low-cost tablet computer, and other wireless Communication devices. The base station in the present invention includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method in a UE supporting variable subcarrier spacing, comprising the steps of:

-step a. receiving a first signalling;

wherein the first signaling indicates a first time-frequency resource from a target resource pool, the first time-frequency resource comprising a first time interval and a second time interval in a time domain; the first time-frequency resource comprises a positive integer number of logical resource block pairs; the logical resource block pair comprises a time-frequency resource block in the first time interval and a time-frequency resource block in the second time interval respectively; the time frequency resource block consists of Q1 RUs; the RU occupies one subcarrier in a frequency domain and occupies the duration of one multicarrier symbol in a time domain; the target resource pool comprises Q2 virtual resource sets, the virtual resource sets comprise Q3 pairs of the logical resource blocks; the target resource pool comprises at least one specific virtual resource set; the particular set of virtual resources occupies the same frequency domain resources in at least two of the time-frequency resource blocks in the first time interval; any two of the logical resource block pairs in the particular virtual resource set occupy orthogonal frequency domain resources in the second time interval; or the first signaling is used to determine whether frequency domain resources occupied by any two of the logical resource block pairs in the specific virtual resource set in the second time interval are orthogonal; the Q1, the Q2, and the Q3 are each positive integers.

2. The method according to claim 1, wherein resource block indexes corresponding to the time-frequency resource blocks in the first time interval of the target resource pool sequentially increase according to a first criterion; the resource block indexes corresponding to the time frequency resource blocks in the second time interval of the target resource pool are sequentially increased according to a second criterion; the resource block indexes corresponding to two time-frequency resource blocks in one logic resource block pair have a difference of L/2, wherein L is less than or equal to the number of the time-frequency resource blocks included in the target resource pool; the first criterion is { time domain first, frequency domain second }, and the second criterion is different from the first criterion.

3. The method of claim 1, further comprising the steps of:

-step b. receiving a first wireless signal in a first time-frequency resource; or transmitting a first wireless signal in a first time-frequency resource;

4. The method according to any of claims 1 to 3, wherein the target resource pool comprises K1 target resource sub-pools, and the time-frequency resources and K1 subcarrier spacings corresponding to the K1 target resource sub-pools are in one-to-one correspondence; the target sub-pool of resources comprises a positive integer number of the pairs of logical resource blocks; the K1 subcarrier spacings all belong to a first set of subcarrier spacings consisting of a K2 subcarrier spacing; the K1 is 1 and the K2 is a positive integer greater than the K1; or the K1 is greater than 1 and the K2 is not less than the K1; the K2 subcarrier spacings share the same { the Q1, the Q3 }; at least two subcarrier spacings exist in the K2 subcarrier spacing, and the number of subcarriers occupied by the time-frequency resource block is different for the two subcarrier spacings; any two subcarrier spacings in the K2 subcarrier spacings are unequal.

5. The method of claim 4, wherein step A further comprises the steps of:

-step A0. receiving the second signaling;

6. The method of claim 5, wherein step A further comprises the steps of:

-a step a1. determining the first set of subcarrier spacings;

7. The method of any one of claims 1 to 3, wherein the target resource pool comprises Q4 of the logical resource block pairs, the Q4 being equal to the product of the Q3 and the Q2, the Q4 of the logical resource block pairs corresponding to virtual indices respectively from 0 to Q4 minus 1; the respective virtual indices of the logical resource block pairs in one of the virtual resource sets are consecutive.

8. A method in a base station supporting variable subcarrier spacing, comprising the steps of:

-step a. sending a first signaling;

9. The method according to claim 8, wherein resource block indexes corresponding to the time-frequency resource blocks in the first time interval of the target resource pool sequentially increase according to a first criterion; the resource block indexes corresponding to the time frequency resource blocks in the second time interval of the target resource pool are sequentially increased according to a second criterion; the resource block indexes corresponding to two time-frequency resource blocks in one logic resource block pair have a difference of L/2, wherein L is less than or equal to the number of the time-frequency resource blocks included in the target resource pool; the first criterion is { time domain first, frequency domain second }, and the second criterion is different from the first criterion.

10. The method of claim 8, further comprising the steps of:

-step b. transmitting a first wireless signal in a first time-frequency resource; or receiving a first wireless signal in a first time-frequency resource;

11. The method according to any of claims 8 to 10, wherein the target resource pool comprises K1 target resource sub-pools, and the time-frequency resources and K1 subcarrier spacings corresponding to the K1 target resource sub-pools are in one-to-one correspondence; the target sub-pool of resources comprises a positive integer number of the pairs of logical resource blocks; the K1 subcarrier spacings all belong to a first set of subcarrier spacings consisting of a K2 subcarrier spacing; the K1 is 1 and the K2 is a positive integer greater than the K1; or the K1 is greater than 1 and the K2 is not less than the K1; the K2 subcarrier spacings share the same { the Q1, the Q3 }; at least two subcarrier spacings exist in the K2 subcarrier spacing, and the number of subcarriers occupied by the time-frequency resource block is different for the two subcarrier spacings; any two subcarrier spacings in the K2 subcarrier spacings are unequal.

12. The method of claim 11, wherein step a further comprises the steps of:

step A0. sending a second signaling;

13. The method of claim 12, wherein step a further comprises the steps of:

-a step a1. determining the first set of subcarrier spacings;

14. The method according to any of claims 8 to 10, wherein the target resource pool comprises Q4 of said logical resource block pairs, the Q4 being equal to the product of the Q3 and the Q2, the Q4 of said logical resource block pairs corresponding virtual indices being respectively from 0 to Q4 minus 1; the respective virtual indices of the logical resource block pairs in one of the virtual resource sets are consecutive.

15. A user equipment supporting variable subcarrier spacing, comprising:

a first receiving module: for receiving a first signaling;

16. The UE of claim 15, further comprising:

a first processing module: receiving a first wireless signal in a first time-frequency resource; or transmitting a first wireless signal in a first time-frequency resource;

17. A base station device supporting variable subcarrier spacing, comprising:

a first sending module: for transmitting a first signaling;

18. The base station device of claim 17, further comprising the following modules:

a second processing module: for transmitting a first wireless signal in a first time-frequency resource; or receiving a first wireless signal in a first time-frequency resource;